New Delhi: Terming as "serious" the alleged violation of safety compliance by HSBC staff in the country against money laundering and terrorist financing, India on Thursday promised to "get to the bottom" of it.

Home Secretary RK Singh also asked India's Ambassador to the US Nirupama Rao to be in touch with American authorities to get more information on the probe by the US Senate's Permanent Sub-committee on Investigations which found that HSBC's Anti-Money Laundering Compliance Department, that included employees in India, was highly inadequately staffed.

"I think this is a very serious matter and we will get to the bottom of it. We need to get some more information from the Americans. We will get that very soon. This has been worrying us," Home Secretary R K Singh said.

Singh was reacting to reports that HSBC's India staff have come under the scanner for deficiencies in their role as "offshore reviewers" of the global banking giant's compliance to safety mechanism against money laundering and terrorist financing.

"To tackle this, we have set up a Financial Intelligence Unit," Singh said.

The Home Secretary said terrorists were using new methods to carry out money laundering to fund their nefarious activities and the security agencies too had to resort to new strategies to catch them.

"Any financial institution that does not follow the international guidelines set by the Financial Action Task Force makes the entire world vulnerable," he said.